ROSH CARDIOLOGY QUESTIONS WITH CORRECT ACCURATE ANSWERS

ROSH CARDIOLOGY QUESTIONS WITH CORRECT ACCURATE ANSWERS 1. Which of the following is a medical treatment for congenital long QT syndrome? A. Flecainide B. Propafenone C. Propranolol D. Quinidine 2. Which of the following vital signs is considered abnormal in a 2-year-old patient? A. Heart rate of 160 beats per minute B. Oxygen saturation of 98% on room air C. Respiratory rate of 26 breaths per minute D. Systolic blood pressure of 85 mm Hg 3. In which of the following clinical scenarios is an implantable cardioverter-defibrillator indicated for the prevention of ventricular dysrhythmias and sudden cardiac death? A. A patient with a left ventricular ejection fraction 35% and heart failure NYHA Functional Class II or III B. A patient with a normal left ventricular ejection fraction and asymptomatic structural heart disease C. A patient with sustained ventricular tachycardia in the setting of an acute myocardial infarction D. A patient with sustained ventricular tachycardia in the setting of hyperkalemia 4. A 65-year-old man presents to the Emergency Department complaining of palpitations for the last week. The palpitations are intermittent, but more severe in the last 3 hours. His heart rate is 140 and blood pressure is 130/80 mm Hg. His ECG is shown above. What is the cardiac rhythm shown on the ECG? A. Atrial fibrillation B. Atrial flutter C. Paroxysmal atrial tachycardia D. Sinus tachycardia 5. A patient with dyspnea and angina fails medication management of his symptoms with beta-blockers, ACE-inhibitors and calcium channel blockers. He undergoes complete cardiac evaluation which uncovers the presence of nonobstructive, end-stage hypertrophic cardiomyopathy. Which of the following is the most appropriate treatment at this point in time? A. Aggressive diuresis B. Cardiac transplantation C. Implantable intracardiac pacing D. Surgical myectomy 6. A 10-year-old boy presents to the emergency department complaining of sudden-onset lightheadedness and chest discomfort. His vital signs are T 98.6°F, heart rate 205 beats per minute, respiration rate 30 breaths per minute, and 98% oxygen saturation. His electrocardiogram is shown above. What is the most likely diagnosis? A. Atrial fibrillation B. Atrial flutter C. Atrioventricular reentrant tachycardia D. Ventricular tachycardia 7. A 54-year-old man with a history of schizophrenia presents to the ED after a syncopal episode. During your evaluation, he becomes diaphoretic and complains of dizziness. You are able to feel a radial pulse, and he is alert and talking with you. His rhythm strip is seen above. Which of the following represents the first-line treatment of this disorder? A. Amiodarone B. Labetalol C. Magnesium sulfate D. Synchronized cardioversion 8. A 74-year-old man is having a preoperative ECG performed. What is your interpretation of his ECG? A. Atrial fibrillation B. Atrial flutter C. Normal sinus rhythm D. Sinus tachycardia 9. A 60-year-old man with a history of hypertension and paroxysmal atrial fibrillation is scheduled to undergo an elective dental extraction. His paroxysmal atrial fibrillation is rate controlled with a beta blocker and he is on chronic anticoagulation with warfarin. Anticoagulation must be discontinued for the procedure. His medications include metoprolol tartrate, lisinopril and warfarin. In addition to discontinuing warfarin, which of the following is the most appropriate next step in management? A. Bridge with aspirin B. Bridge with intravenous unfractionated heparin C. Bridge with low molecular weight heparin D. No bridging agent is necessary